Explain how an estimate you to place the decimal point when multiplying 3.9x5.3

When you estimate, you round the decimal up.3.9 rounds up to 4 ,5.3 rounds up to 5.

4 times 5 equals 20.The actual answer is 20.67.

the answer is b.)

< 1=< 2

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.